Bayonne residents affected by a damaged sewer line and heavy rain last week have been promised that repairs will take place quickly at no cost to residents, according to Mayor Mark Smith.

Early last Friday, contractors working on the Port Authority’s “Raise the Bridge Project” damaged a sewer main on West Fifth Street, west of Kennedy Boulevard.

“A Port Authority contractor was doing street work and accidentally cut an active sewer line. The P.A.’s plans had the sewer line as abandoned,” said Joseph Ryan, spokesman for the mayor. “This caused some basements to flood with sewage.”

Smith has instructed the Bayonne Fire Department to pump the affected basements, said Ryan.

United Water is investigating the cause of the damage, “the MUA (Municipal Utilities Authority) and United Water arranged for bypass pumping to restore service to affected homes,” and the Port Authority has promised repairs will be made at no cost to residents, a statement said.

Anyone with questions can contact the Port Authority at (855) 265-5482.